{"product_id":"s-parts-titanium-headset-top-cap-assembly-carbontitanium","title":"S-Parts Titanium 31.8mm Headset Top Cap Assembly - Carbon - Titanium","description":"\u003ch1\u003eS-Parts Titanium 31.8mm Headset Top Cap Assembly – Carbon \/ Titanium\u003c\/h1\u003e\u003cp\u003ePrecision detail. Zero compromise.\u003c\/p\u003e\u003cp\u003eThe S-Parts 31.8mm Headset Top Cap Assembly is a premium preload solution featuring a full TC4 Grade 5 titanium top cap with integrated carbon detailing, paired with a custom hollow-shaft titanium bolt.\u003c\/p\u003e\u003cp\u003eDesigned for standard 1 1\/8” threadless steerers (31.8mm), this assembly delivers clean aesthetics, corrosion resistance and ultra-light performance in one refined package.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eWhat Sets It Apart\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eFull TC4 Grade 5 titanium top cap\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eIntegrated carbon centre detail\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eCustom M6 x 30mm hollow shaft titanium bolt\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDeep T30 Torx interface for secure engagement\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003ePremium S-Parts presentation packaging\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis isn’t just a cosmetic upgrade — it’s precision hardware built properly.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eDiameter:\u003c\/strong\u003e 31.8mm (1 1\/8” steerer compatible)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eBolt:\u003c\/strong\u003e Custom M6 x 30mm hollow shaft titanium\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e TC4 Grade 5 Titanium with integrated carbon detail\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 6.2g per complete set\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eTool Interface:\u003c\/strong\u003e T30 Torx\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eUse:\u003c\/strong\u003e Headset preload adjustment only\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eBuilt to Last\u003c\/h2\u003e\u003cp\u003eManufactured from aerospace-grade TC4 (Ti-6Al-4V) titanium, this assembly offers:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eExcellent strength-to-weight performance\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eSuperior corrosion resistance\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eSmooth torque application\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eLong-term reliability\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNo rust. No seized threads. No cheap hardware.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eInstallation Note\u003c\/h2\u003e\u003cp\u003eThis component is designed for headset preload adjustment only and is not a structural clamping bolt. Always tighten according to manufacturer-recommended torque settings.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eOff The Front Take\u003c\/h3\u003e\u003cp\u003eIt’s a small component — but it sits right at the centre of your cockpit.\u003c\/p\u003e\u003cp\u003eIf the rest of your build is premium, the top cap should be too.\u003c\/p\u003e\n\u003ch1\u003e\u003cu\u003e\u003cstrong\u003eWhy Choose S-Parts Titanium Bolts \u0026amp; Screws?\u003c\/strong\u003e\u003c\/u\u003e\u003c\/h1\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSmall upgrade. Massive difference.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eS-Parts are one of the most respected names in \u003cstrong\u003etitanium bicycle bolts and screws\u003c\/strong\u003e, producing lightweight bike hardware designed for riders who care about performance and finishing detail. Since 2010, they’ve specialised in precision fixings for \u003cstrong\u003eroad, gravel, mountain and performance builds\u003c\/strong\u003e — helping riders reduce weight, prevent corrosion, and finish a bike properly.\u003c\/p\u003e\u003cp\u003eWhether you’re chasing grams or building a clean custom colourway, S-Parts is one of the easiest ways to upgrade the details that most bikes leave behind.\u003c\/p\u003e\u003cp\u003eWith \u003cstrong\u003e1000+ bolt and screw options\u003c\/strong\u003e, S-Parts covers everything from cockpit hardware and bottle cages to drivetrain, brake and suspension fixings.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eWhy Titanium?\u003c\/h2\u003e\u003cp\u003eStock hardware works — until it doesn’t.\u003c\/p\u003e\u003cp\u003eTitanium is trusted across cycling because it offers an elite balance of:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003elow weight\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003ehigh strength\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003ecorrosion resistance\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003elong-term durability\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eS-Parts components are manufactured from \u003cstrong\u003eTC4 Grade 5 titanium (Ti-6Al-4V)\u003c\/strong\u003e — an aerospace-grade alloy known for excellent fatigue resistance and strength-to-weight performance.\u003c\/p\u003e\u003cp\u003eMany S-Parts titanium bolts and screws offer strength comparable to high tensile steel hardware, while weighing significantly less and staying corrosion-free year-round.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eS-Parts Bolt \u0026amp; Screw Colour Options\u003c\/h2\u003e\u003cp\u003eS-Parts titanium hardware is available in \u003cstrong\u003e9 standout colourways\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eBlue\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eBlack\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eCandy\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eGold\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eGreen\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eIndigo\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003ePurple\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRainbow\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eTitanium\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePerfect for matching frames, finishing kits, accent builds and custom upgrades.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eHow Are S-Parts Bolts \u0026amp; Screws Coloured?\u003c\/h2\u003e\u003cp\u003eS-Parts uses two proven finishing methods to achieve durable, high-end colourways:\u003c\/p\u003e\u003ch3\u003eVacuum Nitriding\u003c\/h3\u003e\u003cp\u003eUsed for:\u003cbr\u003e\u003cstrong\u003eBlack, Blue, Gold, Rainbow\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA hard-wearing surface treatment designed for durability and long-term appearance.\u003c\/p\u003e\u003ch3\u003eAnodising\u003c\/h3\u003e\u003cp\u003eUsed for:\u003cbr\u003e\u003cstrong\u003eCandy, Green, Indigo, Purple\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn electrochemical process that creates vivid colours while maintaining titanium’s natural corrosion resistance.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eMeasuring Your Bolts \u0026amp; Screws (Important)\u003c\/h2\u003e\u003cp\u003eBolt sizing can be confusing — especially when brands measure hardware differently.\u003c\/p\u003e\u003cp\u003eFor S-Parts products, \u003cstrong\u003ebolt and screw length refers to the shaft length only\u003c\/strong\u003e:\u003cbr\u003e✅ measured from \u003cstrong\u003eunder the bolt head\u003c\/strong\u003e to the \u003cstrong\u003eend of the thread\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eS-Parts thread sizes range from \u003cstrong\u003eM3 through to M10\u003c\/strong\u003e, covering the most common bicycle applications.\u003c\/p\u003e\u003cp\u003eIf you’re unsure what size you need, contact us — we’ll help you match the correct part.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eInstallation Note\u003c\/h3\u003e\u003cp\u003eAlways follow your component manufacturer’s official installation instructions and torque settings. 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